A robust algebraic domain decomposition preconditioner for sparse normal equations
Solving the normal equations corresponding to large sparse linear least-squares problems
is an important and challenging problem. For very large problems, an iterative solver is …
is an important and challenging problem. For very large problems, an iterative solver is …
On numerical solution of full rank linear systems
Matrices can be augmented by adding additional columns such that a partitioning of the
matrix in blocks of rows defines mutually orthogonal subspaces. This augmented system can …
matrix in blocks of rows defines mutually orthogonal subspaces. This augmented system can …